212109378114 has 64 divisors (see below), whose sum is σ = 457851004416. Its totient is φ = 65259577344.

The previous prime is 212109378109. The next prime is 212109378121. The reversal of 212109378114 is 411873901212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14356359 + ... + 14371125.

It is an arithmetic number, because the mean of its divisors is an integer number (7153921944).

Almost surely, 2^212109378114 is an apocalyptic number.

212109378114 is an abundant number, since it is smaller than the sum of its proper divisors (245741626302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212109378114 is a wasteful number, since it uses less digits than its factorization.

212109378114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17499.

The product of its (nonzero) digits is 24192, while the sum is 39.

The spelling of 212109378114 in words is "two hundred twelve billion, one hundred nine million, three hundred seventy-eight thousand, one hundred fourteen".